html,body{background-color: #000 }
/* -------------------------- 登 录 ---------------------------------*/
#kr-passport{z-index: 1; height: 100vh; }
#kr-passport .passport-login{ width: 400px; left: 50%; top: 50%; margin-top: -225px; margin-left: -200px;}
#kr-passport .passport-login .logo{background: url("../common/logo-passport.png") no-repeat center center; width: 127px; height: 127px; top: -63px; left: 136px;  z-index: 3}
#kr-passport .passport-login .login-box{ background-color: #fff}
#kr-passport .passport-login h1{margin-top: 60px; line-height: 60px;}
#kr-passport .passport-login .layui-btn{width: 100%}

#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    min-height: 600px;
    background-color: #222;
    background-image: url("bg.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
}